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Finding the Fourth Proportional to 102,618.40, 154,024.80 and 63,252.40

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Solution

The fourth proportional to 102,618.40, 154,024.80 and 63,252.40 is: 94,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.40 : 154,024.80 = 63,252.40 : x
  2. Step 2: Convert to fraction form
    102,618.40/154,024.80 = 63,252.40/x
  3. Step 3: Cross multiply
    102,618.40x = 154,024.80 × 63,252.40
  4. Step 4: Simplify right side
    102,618.40x = 9,742,438,259.52
  5. Step 5: Solve for x
    x = 9,742,438,259.52/102,618.40
  6. Step 6: Final answer
    x = 94,938.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.